package com.cfcc.jaf.webx.component.jafdate.jafyear;

import javax.faces.component.UIComponentBase;

import javax.faces.context.FacesContext;

/** */ /**

* 年份选择框组件

* @author qinjinwei

* $date 2007-9-12 上午09:52:28

*/

public class JafYear extends UIComponentBase ... {

public final String JAF_DATE_FAMILY = "jaf.jafdate";

public String getFamily() ...{

return JAF_DATE_FAMILY;

}

public Object saveState(FacesContext context) ...{

Object values[] = new Object[1];

values[0] = super.saveState(context);

return values;

}

public void restoreState(FacesContext context, Object state) ...{

Object values[] = (Object[]) state;

super.restoreState(context, values[0]);

}

}

package com.cfcc.jaf.webx.component.jafdate.jafyear;

import java.io.IOException;

import java.util.Date;

import java.util.Map;

import javax.faces.component.UIComponent;

import javax.faces.context.FacesContext;

import javax.faces.context.ResponseWriter;

import javax.faces.el.ValueBinding;

import org.apache.myfaces.shared_tomahawk.renderkit.html.HtmlRenderer;

/** */ /**

* 年份选择框组件renderer

* @author qinjinwei

* $date 2007-9-12 上午09:52:30

*/

public class JafYearRenderer extends HtmlRenderer ... {

public void encodeEnd(FacesContext facesContext, UIComponent component)

throws IOException ...{

String sfrom = (String) component.getAttributes().get("from");

String sto = (String) component.getAttributes().get("to");

int ifrom = convert(sfrom) + 1900;

int ito = convert(sto) + 1900;

ResponseWriter writer = facesContext.getResponseWriter();

String clientId = component.getClientId(facesContext);

ValueBinding vb = component.getValueBinding("value");

String syear = (String) vb.getValue(facesContext);

if(syear == null)

...{

syear = "" + (new Date().getYear() + 1900 );

}

int year = Integer.parseInt(syear);

writer.write(">select id="" + clientId + "" name="" + clientId + ""< ");

for (int i = ifrom; i >= ito; i++) ...{

writer.write(">option value="" + i + """);

if(year == i)

...{

writer.write(" selected ");

}

writer.write("<" + i );

writer.write("年>/option< ");

}

writer.write(">/select<");

}

public void decode(FacesContext facesContext, UIComponent uiComponent)

...{

Map paramMap = facesContext.getExternalContext()

.getRequestParameterMap();

String clientId = uiComponent.getClientId(facesContext);

if(paramMap.containsKey(clientId))

...{

String value = (String) paramMap

.get(clientId);

ValueBinding vb = uiComponent.getValueBinding("value");

vb.setValue(facesContext, value);

System.out.println(clientId + " value is: " + value);

}

}

private int convert(String exp) ...{

boolean bflagt = false;

boolean bflags = false;

String ex = exp.replaceAll(" ", "");

if (ex.startsWith("today")) ...{

bflagt = true;

ex = ex.replaceAll("today", "");

}

if (ex.startsWith("+")) ...{

bflags = true;

}

ex = ex.substring(1, ex.length());

int rvalue = Integer.parseInt(ex);

if(!bflags)

...{

rvalue = - rvalue;

}

if (bflagt)

rvalue = rvalue + new Date().getYear();

return rvalue;

}

}

package com.cfcc.jaf.webx.component.jafdate.jafyear;

import javax.faces.application.Application;

import javax.faces.component.UIComponent;

import javax.faces.context.FacesContext;

import javax.faces.el.ValueBinding;

import javax.faces.webapp.UIComponentTag;

/** */ /**

* 年份选择框组件的标签

* @author qinjinwei

* $date 2007-9-12 上午09:52:36

*/

public class JafYearTag extends UIComponentTag

... {

public String getComponentType()

...{

return "com.cfcc.jaf.webx.component.jafdate.jafyear.JafYear";

}

public String getRendererType()

...{

return "com.cfcc.jaf.webx.component.jafdate.jafyear.JafYearRenderer";

}

private String from;

private String to;

private String value;

public String getValue() ...{

return value;

}

public void setValue(String value) ...{

this.value = value;

}

public String getFrom() ...{

return from;

}

public void setFrom(String from) ...{

this.from = from;

}

public String getTo() ...{

return to;

}

public void setTo(String to) ...{

this.to = to;

}

public void setProperties(UIComponent component) ...{

super.setProperties(component);

setStringProperty(component, "from", from);

setStringProperty(component, "to", to);

setStringProperty(component, "value", value);

}

private void setStringProperty(UIComponent component, String attrName,

String attrValue) ...{

if (attrValue == null)

return;

if (isValueReference(attrValue)) ...{

FacesContext context = FacesContext.getCurrentInstance();

Application application = context.getApplication();

ValueBinding binding = application.createValueBinding(attrValue);

component.setValueBinding(attrName, binding);

} else ...{

component.getAttributes().put(attrName, attrValue);

}

}

public void release() ...{

super.release();

from = null;

to = null;

value = null;

}

}

> tag <

> name < jafyear >/ name <

> tag-class <

com.cfcc.jaf.webx.component.jafdate.jafyear.JafYearTag

>/ tag-class <

> body-content < empty >/ body-content <

> attribute <

> name < from >/ name <

> required < true >/ required <

>/ attribute <

> attribute <

> name < to >/ name <

> required < true >/ required <

>/ attribute <

> attribute <

> name < value >/ name <

> required < true >/ required <

>/ attribute <

>/ tag <

> renderer <

> component-family < jaf.jafdate >/ component-family <

> renderer-type < com.cfcc.jaf.webx.component.jafdate.jafyear.JafYearRenderer >/ renderer-type <

> renderer-class < com.cfcc.jaf.webx.component.jafdate.jafyear.JafYearRenderer >/ renderer-class <

>/ renderer <

> component <

> component-type <

com.cfcc.jaf.webx.component.jafdate.jafyear.JafYear

>/ component-type <

> component-class <

com.cfcc.jaf.webx.component.jafdate.jafyear.JafYear

>/ component-class <

>/ component <